#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 Christoph Hellwig.  All Rights Reserved.
#
# FS QA Test No. 408
#
# Verify that mtime is not updated when deduping files.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
status=0
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -f $sourcefile
	rm -f $destfile
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/reflink

# real QA test starts here
_supported_fs generic

_require_test
_require_test_dedupe

echo "Silence is golden."
rm -f $seqres.full

# pattern the files.
sourcefile=$TEST_DIR/dedup_mtime_sourcefile
$XFS_IO_PROG -f -c "pwrite 0 4k" -c fsync $sourcefile >> $seqres.full

destfile=$TEST_DIR/dedup_mtime_destfile
$XFS_IO_PROG -f -c "pwrite 0 4k" -c fsync $destfile >> $seqres.full

# sample timestamps.
mtime1=`stat -c %Y $destfile`
ctime1=`stat -c %Z $destfile`
echo "before dedup: $mtime1 $ctime1" >> $seqres.full

# dedup to trigger timestamp change
sleep 1
_dedupe_range $sourcefile 0 $destfile 0 "4k" >> $seqres.full

# sample and verify that timestamps have changed.
mtime2=`stat -c %Y $destfile`
ctime2=`stat -c %Z $destfile`
echo "after dedup : $mtime2 $ctime2" >> $seqres.full

if [ "$mtime1" != "$mtime2" ]; then
	echo "mtime updated"
	let status=$status+1
fi
if [ "$ctime1" != "$ctime2" ]; then
	echo "ctime updated"
	let status=$status+1
fi

exit